Merge tag '0.0.1' into develop

Version 0.0.1
wip: add /corpus/:c/media/:m/{webm|mp4|ogv}
feat: Docker image with linked MongoDB
doc: how to dump the database
Order route, change switch case un authentication

routes are order by level

in function exports.requiredConsistentID and
exports.requiredAuthentication, replace number in switch case by real
name (1="corpus", 3="media", 5="layer", 7="annotation")
clean
Add test on bad role for new user
Update user : add role, del name

Add modification of the user role limited to 3 roles (admin,
supervisor, user)
Delete the modification of the user name
delete exports.chmodUser from authenticate.js
...
Correction message de retour non json
docker: new -e ROOT_PASSWORD support
fix: conflicts